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(ModeL) W. W. SHALLUS.

SEAL LOCK.

No. 282,380. Patented July 31, 1883.

V AA

H UNITED STATES ATENT Orricie.

WILLIAM IV. SHALLUS, OF LANCASTER, PA. ASSIGNOR OF TI/VO-TH IRDS TO SAMUEL B. BITZER A ND WILLIAM B. IVILSON, OF SAME PLACE.

SEAL--L OCK.

SPECIFICATION formingpart of Letters Patent No. 252,380, dated July 31, 1883.

Application filed April 3, 1883. model.)

the following is a specification, reference being had therein tothe accompanying drawings.

This invention relates to certain new and useful improvements in seaLlocks; and it consists, essentially, in the employment, with a suitable casing, of a revolving locking-tumbler, a pivoted detent, a spring-actuated guide, and a sliding bolt, together with certain other minor co-operating devices, the several peculiarities of which shall hereinafter more fully appear;

and my invention has for its object to provide a lock which shall secretly engage and hold the seal-wire within its casing securely and firmly in such a manner as to make it impossible to i I unlock the same (unless the key be used) without breaking or severing the seal-wire.

In the accompanying drawings, forming a part of this specification, and on which like reference-letters indicate corresponding features, Figure 1 represents a longitudinal sectional view of my improved lock, the same being taken on the dotted line as as, Fig. 2; Fig.

2, a plan View of the 1ock,showing the relative arrangement of the locking mechanism, the casing being removed Fig; 3, a detail perspective view of a portion of the sliding bolt, showing the seal-wire in engagement therewith andFig. 4, a plan view of the top plate detached.

The letter A indicates the casing of my improved lock, the same consisting of a rectangu lar box constructed of metal, and provided with suitable apertures and bolts, or other means by which it may be secured to the door;

or to the door-frame or other object to be locked. A plate, A, provided with guides 13, for the purpose of sustaining the lock-bolt, is

secured to the door or to the door-frame, ac

cording to the position of the lock. Suitably secured within the casing is the base-plate B, to which is strongly attached the top plate, 0, by means of the studs 0, these plates being constructed of metal. From one edge of the plate B. extends the side D, and to the studs I D, extending from the bed-plate B, is secured 5o the fixed wire-guide E.

The letter 1 designates the rotating tumbler, the said tumbler being pivoted on a stud, F, secured, preferably, to the bedplate; and it consists of a block having a groove, F, on one 5 5 edge for theipassage of the sliding bolt, (to be hereinafter further mentioned,) an abutment,

G, which engages a fixed pin, G, whereby,in

connection with a suitable spring, G it is normally held in locking position, and alug, H, the

configuration of which is such as to receive the key and cause the tumbler to rotate.

The letter H refers to a pivoted springactuated detent or pawl, the free end of which stands normally behind and in close contact with the tumbler E, and serves to hold the said tumbler in a locked position against the withdrawal of the sliding bolt. This detent is so shaped as to be forced from its normal position by the initial movement of the key just preceding its action on the tumbler, and to be returned to such a position as the key advances in the arc of its rotation, the spring causing such return.

The letter I indicates a sliding lock-bolt, to

one end of which is preferably attached a finger loop or ring to facilitate in the withdrawal of the bolt, and a shoulder, t, which prevents the plate A from being forced back, the other end terminating in a shank adapted to enter the groove F in therotating tumbler E, and

to be laterally held therein by the side piece, D, or by other equivalent means. The eX- tremity of this shank is rounded, or so beveled as to admit of the loop end of the seal-wire be ing forced past it, and it is provided with a recess or other means of engaging said wire,

as shall presently appear.

Pivoted, preferably, to the baseplate B is a spring-actuated or yielding wire-guide, I,

which, in connection with the fixed guide E,

forms a passage or concluit'for the seal-wire It will apertures above mentioned and between the fixed and yielding guides until its loopedend reaches the bolt, when a slight continued press ure wedges it between the said yielding guide and the bevel of the shank until it drops, finally, into the recess. When in' this position, the bolt cannot be withdrawn without breaking or severing the wire, as the looped end of the latter, should an attempt at withdrawalbe made, will be brought in contact with the tumbler E, and thus arrest the bolt. Then it is desired to unlock the parts, the key is applied through the aperturcsin the casing and the top plate, and rotated in the direction of the arrow until the detent His forced beyond the are described by the tumbler, and the latter then rotated so as to bring its straight side K parallel, or approximately so, with the bolt, when the latter can be withdrawn, the loop of the wire passing free of the tumbler.

It is to be observed that I contemplate sometimes dispensing with the outer casing, A, and so constructing and connecting the plates 13 and C (after the manner of an ordinary lock, for instance) that they will be sufficient of themselves for the purposes contemplated.

It may also be remarked that my lock is particularly designed to be used on railway-cars, though'its use, as is obvious, is not restricted to such appliances.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

- 1. The combination, in a seal-lock, of the rotating tumbler, the spring-detent, and the return-spring, adapted, the one to normally hold the tumbler, and the other to return itto such position against its abutment, with the sliding bolt provided with the wire-recess, and the seal-wire adapted to engage therewith and to bind against the tumbler, whereby the parts are locked, substantially as described.

2. The combination, in a seal-lock, of the rotating tumbler having a groove to receive the bolt, the spring-detent, and the returnspring, adapted, the one to normally hold the tumbler, and the other to return it to such position against its abutment, with the sliding bolt and the wire conduit or guides, the said bolt being adapted to engage the wireand to cause it to bind against the tumbler, and the conduit to guide the wire, substantially as described. 3. The combination, in a seal-lock, of the rotatingftumbler, its return-spring, and the spring-detent, the said tumbler and detent being provided with lugs, whereby they are thrown out of engagement and the tumbler is rotated, with the bolt and the conduit having a yielding guide, whereby the wire is guided and allowed to enter the recess in the bolt, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

XVILLIAM XV. SHALLUS.

WVitnesses:

(inns. D. DAVIS, YVILLIAM D. ALEXANDER. 

